Russian's state nuclear company says five people were killed in Thursday's rocket explosion on a naval test range.
A statement from Rosatom said three people were also injured in the incident.
They say the staff members suffered serious burns in the accident, which has been shrouded by mystery.
On Friday Russian government sources said two people died and six were injured in the Nyonoksa blast.
Thailand school shooting toll rises to nine after death of 12-year-old girl
The death toll from a school shooting in Thailand rose to nine on Saturday, after police said a 12-year-old girl caught up in Friday's incident had died.
Thousands told to evacuate in British Columbia as wildfire grows
Thousands of residents in British Columbia were ordered to evacuate on Saturday as a fast-moving wildfire in western Canada nearly doubled in size overnight.
Three killed in Russian strikes in Kyiv region, official says
Russian strikes killed three people, including a child, in the region surrounding capital Kyiv on Saturday, an official said.
Typhoon Dolphin hits Japan's Okinawa, China shuts ports ahead of landfall
Typhoon Dolphin lashed Japan's southern Okinawa prefecture on Saturday, injuring five people and cutting power to 14,000 buildings, while China shut ports and ferry routes ahead of the storm's expected arrival on its east coast.
Spain to establish border controls against Italy amid migration dispute
Spain's government said on Friday it would establish border controls for flights and ships from Italy from midnight on Saturday until September 7 in a dispute with the neighbouring country over irregular migration.
